Abstract: The necessity to inverse the parameters of Hufnagel-Valley atmospheric turbulence model was analyzed. The two adjusted parameters were inversed according to real-time measurement of atmospheric coherence length and isoplanatic angle. Furthermore, an improved inversion equation was proposed. By numerical simulation, the results show that the improved equation covers the shortage which the original equation can't inverse the high wind parameter effectively when turbulence near the ground is weak. It is suitable for inversion of different turbulence conditions, and improves the accuracy of turbulence profile: taking two typical wind model as examples, the relative error of parameters inversed by improved equation are within 0.5%; the improved equation also weakens the influence due to measurement errors of coherence length and isoplanatic angle.